THE INFLUENCE OF POLYPYRROLE COATING ON CORROSION BEHAVIOR OF ZnNi DEPOSITED COPPER ELECTRODE

Year 2017, Volume: 12 Issue: 1, 16 - 24, 04.01.2017

ALİ TUNCAY Özyılmaz , Nureddin Colak Çağla Surmelıoglu İbrahim Fılazı

Abstract

Bilayer and monolayer coatings offer good
protection against metal and alloy corrosion. The protection of copper against
corrosion via the use of metallic and polymeric coatings has been the subject
of considerable research in the last decade. In this study, ZnNi plating was successfully deposited on the Cu electrode applying current
of 7 mA with chronopotentiometry technique in the acidic solution. The PPy film
was synthesized on thin ZnNi plating which deposited electrochemically on the
copper surface. Homopolymer film was achieved using cyclic voltammetry
technique in sodium oxalate solution containing pyrrole monomer. PPy coating
provided a significant barrier property due to its lower permeability as well
as the improvement the barrier behavior in time.

Keywords

Corrosion, Polypyrrole, Alloy, Copper, EIS

THE INFLUENCE OF POLYPYRROLE COATING ON CORROSION BEHAVIOR OF ZnNi DEPOSITED COPPER ELECTRODE

Abstract

Bilayer and
monolayer coatings offer good protection against metal and alloy corrosion. The
protection of copper against corrosion via the use of metallic and polymeric
coatings has been the subject of considerable research in the last decade. In
this study, ZnNi plating was successfully deposited on the Cu
electrode applying current of 7 mA with chronopotentiometry technique in the
acidic solution. The PPy film was synthesized on thin ZnNi plating which
deposited electrochemically on the copper surface. Homopolymer film was
achieved using cyclic voltammetry technique in sodium oxalate solution
containing pyrrole monomer. PPy coating provided a significant barrier property
due to its lower permeability as well as the improvement the barrier behavior
in time.

Keywords

Corrosion, polypyrrole, alloy, copper

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